Use the internal polymarket geolocation service.

poly_geo

Improved notification preferences and types.

notifications_v2

funkit_deposit

funkit_withdraw

authenticated_book_ws

Improved in-game view for sports markets.

mobile_sports_overlay_v2

async_order_submission

Enable updates from the sports websocket.

sports_websocket

This is a polymarket on the tennis match between Reilly Opelka and Botic van de Zandschulp in the Swiss Indoors Basel, scheduled for October 23 at 7:00AM ET.

This market will resolve to 'Opelka' if Reilly Opelka advances against Botic van de Zandschulp.

This market will resolve to 'Zandschulp' if Botic van de Zandschulp advances against Reilly Opelka.

If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.

If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve in favor of the player(s) who officially advances to the next round.

The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.

Botic van de Zandschulp vs. Reilly Opelka Betting Odds & Predictions (Oct. 23, 2025) | Polymarket

Moneyline$302.5k Vol.

ATP

Moneyline
$302.5k Vol.